Incinerator



March '2 1926. 1,575,024

F. J. WEBER INGINERATOR Filed oct. "29, 1923 :s sheets-sheet 1 March 2 ,11926. v

v F. J. WEBER INCINERA'ron Filedvoct. 29, 1923 3 Sheets-Sheet 2 By' @am Jzyzs Patented Mar. 2, 1926.

UNITED STATES PATENT oFElcE.

. FREDERICK J. WEBER, 0F LOS ANGELES, CALIFORNIA.

IN CINERATOB.

.Application filed October 29, 1923. Serial No. 671,347.

USG.

With the passage of ordinances respecting the burning of refuse and waste materials throughout the various large cities, it has become necessary to provide means in compliance with such ordinances 1n which the refuse maybe burned. A common type of incinerator consists of a vertical structure of fire resisting material having an opening near the upper end thereof through which the material to be burned is placed in the incinerator and an opening near the bottom thereof serving as a draft opening and for the removal of ashes. Such incinerators are not generally made of such size to receive a very large charge and .as the material placed therein burns, it is customary to add ,thereto through the charge openings.- It

\ is found that when the fire is burning Within the incinerator and the charge door is opened, fiames and smoke will issue therefrom in a manner making the addition of -more material unpleasant and often causing burns to the person.

It is an object of the invention to provide a grate and dra-ft system suitable for use in an incinerator having a charging opening with a suitable cover, a draft opening have.

ing a closure plate, and intervening mechanism for 'causing the movement ofthe closure plate across the draft opening when the charging door is opened, thus shutting off the air from the incinerator so as to cause the flames therein to die down and thus eliminate the undesirable and dangerous issuance of smoke andA ame from the charging opening.

It is a further object of the invention to provide novel features contributing to the simplicity and economy of construction.

It is a further object of the invention t0 provide an incinerator so constructed -that a clean. out door extending the full width of the incinerator maybe provided, thus giving ample roomfor the removal of ashes from the bottom of the incinerator and permitting the grate and grate supporting structure to be entirely removed from the interior thereof. Owing to the packing of the material placed in the incinerator for burning, a. free upward circulation of air for combust1on is often seriously interfered with so that an excess volume of smoke and the 'charting f the materials to be burned results.

My invention may be used with auxiliary air channels in thel side walls through which air is delivered from the ash chamber to points above the packed combustible Inaterial so that more complete combustion takes place and the production of smoke is reduced to a minimum.

It is a further object of the invention to I provide a grate and draft system suitable for use in an incinerator which may be cast in the form of separate parts, thereby facilitating its transportation, which when set up will interlock in the form of a rigid structure.

The especial advantages and further objects thereof will be made evident hereinafter.

Referring to the drawings which are for illustrative purposes only:

Fig. 1 is a perspective elevation of one type of incinerator in which I may embody thefeatures of my invention.

Fig. 2 is a vertical section taken substantially upon a central plane.

Fig. 3 is a section taken on a plane indicated by the line 8--3 of Fig. 2.

Fig. 4 is a view taken as indicated by the arrow 4 of Fig. 3,' but with the clean out door and the door lintel removed.

Fig. 5 is a fragmentary enlarged section taken as indicated by tlie.line 5-5 of Fig. 1.

Fig. 6 is a perspective view of the grate supporting member.

The incinerator shown in Fig. 1 comprises a lower box structure 11, an upper box structure 12, a cap 13, and a 'stack 14 which are placed one upon the other and are of such form that they interlock without use of bolt means and provide an incinerator chamber in which refuse may be burned without fire hazard and without the objectional features of an open trash fire.

In the incinerator shown, the lower section 11 is formed of four quadrilateral slabs in 16, 17, 18 and 19 which are preferably cast from concrete, although other cementitions mixtures may' be employed. These slabs which rest upon front corner foundation members 20 and rearward foundation members 21, are provided with edge forma tions such as shown at 23, Fig. 3, so that a seal may be formed therebetween by the use of a layer of asbestos material 24 or other similar fire resisting substance. The members 16 and 18 have channels 26 cast in the edges thereof and the edges 27 of the members 17 and 19 are suitably beveled t-o fit the channels 26, thus providing a bending of the sheet of asbestos 24 into angular form when laced between the members 16 to 19. The ibwer edges of the side members are held together by the upwardly extending Walls 30 of the foundation members 20 and 21, and a frame 31 also cast of concrete is placed over the upper edge of the wall members. Thls frame or ring 31 is recessed at 33 and 34 so that itwill lit down over theupper edges of the members 16 to 19 and will receive the lower edges 35 of the wall members 37 constituting the upper section 12. The upper edges of the wall members 37 are enclosed by the-downwardly extending flanges 38 of the cap 13 which is of conoidal form and has an upwardly projecting internal flange 40 over which the lower end 41 of the stack 14 rests. same edge construction as the wall members 16 to 19 and are placed together with stripsof insulating material in the same manner as previously described.

The wall 16, as best shown in Fig. 2, ex-

l tends only part way down fromthe top edge of the lower section 11 so that the clean out.

opening 44 which is the full width of the section 11 is thereby formed, and which opening resting upon foundation members 21, is normally closed by a door plate 45, having a handle 46. In view of the fact that the edges of the wall members slope inwardly, it is evident that the door member will remain in place without the use of securing means.

In this form of incenerator, the wall 18 is provided near its lower edge or at its lower edge with a draft opening 47 provided with a closure plate 48 operating in vertical slides 49. The front plate 37 of the upper section 12 is provided with a charging opening 39 encircled by a suitable frame 50. Supported across the upper edge of the opening by bearing blocks or clamps 51 is a shaft 52 to which the upper edge 53 of the charging The wall members 37 have the formed. From the eye 56 of the crank 57 a chain 59, or other flexible member, extends `downwardly over a pulley 61 mounted in the leftward side 62 of the frame 31 as shown in Figs. 1 and 5, to the closure member 48, this chain being of such length that when the crank 57 is in upwardly extending position, the closure plate 48 is raised as shown in Fig. 1, thus allowing the passage of air through the draft opening 47 when the charging door is closed. A foot lever 64 is hinged at 65 to the member 18 and a chain 67 is extended therefrom over the pulley 61 and connected to the chain 59 at 68. A downward application of pressure on the lever 64 is in dlcated by the arrow 69 which causes the chain 59 to be pulled downwardly with the result that the crank 57 is rotated through an aro 71 causing the door 54 to swing upwardly and allowing the closure plate 48 to drop down in the slides 49 so as to close the draft opening. This arrangement of parts causes the draft to be shut olf when the charging door is opened, thus preventing the issuance of a blast of flame and smoke from the charging opening, therefore making' it possible to safely and conveniently place additional refuse in the incenerator. l

-Coming now to those features of novelty to whose protection the present agplication is especially directed, as shown in igs. 2, 3 and 4, a grate support 75 is placed in the bottom of the lower section 11 which has the form shown in Fig. 6, a one-piece grate 76 being disposed thereacross for the purpose of supporting the materials placed in the incinerator.

The member 75 is comprised of an upper U-shaped frame 77 having inwardly directed horizontal walls 78, from the inner edges 79 of which there downwardly and outwardly extend side walls 81 which slope outwardly in such a manner that the lower edges 82 ing 47 into the channels may pass inwardlyto the central portion of the -grate 76` as indicated by the arrows 87 in Fig. 2.

Inthe walls 17, 18 and 19 maybe formed air channels 89 which extend from points below the grate 76 to points 90 somewhat above the grate level. When a considerable rquantity of material is placed in the incinerator for burning, the first four or five inches thereof resting on the grate may become very tightly packed due to the weight of the superposed material, thus interfering with the passage of air necessary for combustion. their equivalent, however, permit air to pass freely into the upper `portion of the fire chamber so as to produce combustion in the upper layers of the material. The air drawn through these passages 89 may be derived from the same source as theair'which passes through the grate member and may be therefore controlled by the closure plate 4 8.

The plate 16,-when employed. in connection with the described features of my invention,

serves as a lintel for theclean out opening, and may be provided as shown in Fi 3, with lugs 94 at the upper edges thereof w iich extend into recesses 95 formed at the upper corners ofthe members 17 and 19, thus su porting weight of the member 16 on the side walls 17 and- 19. For the purpose of securing the plate 16 against being swungvoutwardly, a flat bar 100, Fig. 4, may be riveted or bolted to the inner face of the member 16, the ends 101 thereof being constricted to round bar form projecting through holes 102 land having nuts 103 threaded thereon as shown. By removing the member which is 'the full width of the lower section, ample opening is provided through which the grate support and grate may be lremoved with a minimum of effort so that all metal particles,

cans, and other such articles may be cleaned i from the grate and the ashes uickly dragged 'out with a hoe or other suita le instrument.

This constitutes a valuable feature over the present construction of incinerators owing to the fact that such incinerators are not provided with suitable means for cleaning out the ashes or unburnable articles therein but can only be cleaned by fishing the ashes out through the draft opening or through the top of the charging opening of the incinerator.

Although I have herein described a complete incinerator, various features thereof constitute the subject matter of separate applications Serial No. 40,270 filed June 29, 1925 the features upon which protection is herein sought being more particularly in dic'ded in the following claims.

I claim as my invention:

1. In ari`incinerator, a combination of:

i side walls defining a fire chamber; a grate disposed acrosssaid chamber at an intermediate level; and a member U-shaped in horizontal outline and provided with perforations in its upper part, said member forming V-shaped air passages between a draft opening in the lower portion of said chamber and a central space beneath said grate, whereby 'air for sustaining combustion is The'optional air channels 89 or conveyed, by way of said V-shaped passage and by wa of said'perforatons, into contact with e material on said grate.

2. In an incinerator, the combination of: side walls defining a fire chamber; a onepiece grate disposed across said chamber at an intermediate level and removable through a side thereof; and a rate-supporting member insertable throug said side and forming substantially V-shaped air passages from which ash is excluded, said grate-supporting. member comprising downwardly divergent inclined walls having apertures near the top thereof, whereby air for sustaining combustion is conveyed upwardly to the material on said grate.

3. In an incinerator, the combination of: side walls defining a fire chamber and a draft opening; a grate disposed across said `chamber at an intermediate level; and an air distributing grate support provided with substantially fiat horizontal top surfaces and with apertures whereby air for sustaining combustion is conveyed to the material on said grate, a movable closure member for said draft opening being arranged to control the flow of air to said grate through said support, and said grate and said support being freely removable.

4. In an incinerator, the combination of: side walls defining a chamber and having a draft opening near the plane of their lower edges; and a grate disposed across said chamber in an intermediate position, said side walls having substantially vertical air passages formed therein and extending be tween the lower portion of said chamber divided off by said grate and the upper portion of said chamber, whereby air for sustaining combustion will be conveyed upwardly around the material on said grate; and a closure member for said draft opening arranged to shutoff the flow -of air through said grate and said passages.

5. In .an incinerator, the combination of: side walls defining a burning enclosure; a grate insaid burning enclosure for supporting material to be burned; and a grate supporting member having a central opening and downwardly extending supporting walls, said walls being spaced away from said enclosure walls so as to provide an air channel, and having perforations therein through which air may pass from said air channel to said central `opening of said grate supporting member. p

6. In an incinerator, the combination of: side walls defining a burning enclosure; a grate in said burning enclosure for supporting material to be burned; and a grate supporting* member having a vcentral opening and downwardly extending supporting walls enclosing a portion of the lower end of said enclosure. as an ash chamber, said walls being spaced away from said enclosure walls so as to provide an air channel, and having 5 supporting member.

For use in an incinerator comprising-a grate in a burning enclosure provided with a lateral draft opening; a substantially U- shaped air distributing grate support comprising laterally perforated and downward- 10 In testimony whereof, I have hereunto set l5 my hand at Los Angeles, California, this 20th day of October, 1923.

FREDERICK J. WEBER. 

